A lightweight concrete stair

By installing protective components on the surface and back of the concrete staircase, the problem of easy damage to the sharp edges of prefabricated staircases during transportation is solved, achieving higher protection and stability.

CN224395946UActive Publication Date: 2026-06-23SHANGHAI JINCONNE NEW MATERIAL TECHNOLOGY CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI JINCONNE NEW MATERIAL TECHNOLOGY CO LTD
Filing Date
2025-07-25
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing precast concrete stairs are easily damaged during transportation due to impacts or compression from sharp edges, affecting their usability.

Method used

The staircase is protected by surface and back protective components (including a first locking plate, a second locking plate, a connecting rod, and a connecting side plate, etc.), and the staircase is stably fixed and buffered through a connecting mechanism and a limiting mechanism.

Benefits of technology

It effectively reduces damage to stairs during transportation, improves protection during transportation, and enhances the stability and safety of stairs.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224395946U_ABST
    Figure CN224395946U_ABST
Patent Text Reader

Abstract

The utility model discloses a lightweight concrete stair, including concrete stair main part, the surface of concrete stair main part is combined with surface protection subassembly, the back of concrete stair main part is combined with back protection subassembly, the both sides of concrete stair main part are installed with connecting mechanism, and both ends of connecting mechanism are all fixedly connected with limit mechanism. The utility model discloses a plurality of first clamping plate and second clamping plate and second connecting rod are combined on the surface of concrete stair main part, can effectively conveniently shield the protruding part of concrete stair main body surface, reduce the collision of concrete stair main body in the transportation process, avoid the damage when the concrete stair main body of transportation forming, and through first connecting rod and third clamping plate, can conveniently connect the effect of a plurality of first clamping plate and second connecting rod.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of concrete staircase technology, and in particular to a lightweight concrete staircase. Background Technology

[0002] In residential buildings, lightweight concrete is often used to manufacture floor slabs, stairs and partitions. Lightweight concrete stairs are stair structures made of lightweight concrete, which have the characteristics of light weight and good thermal insulation. At present, concrete stairs adopt prefabricated concrete stairs, which divide the stairs into three parts: landing slab, stair beam and stair section. These components are prefabricated in the processing plant or on the construction site, and the prefabricated components are assembled together by assembly and welding during construction.

[0003] Existing prefabricated staircases are transported to the site for assembly after manufacturing. However, the surface of the staircase has many sharp edges, which are prone to breakage and damage when subjected to impact or pressure, affecting its use. To address this issue, we propose a lightweight concrete staircase. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a lightweight concrete staircase.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A lightweight concrete staircase includes a concrete staircase body, a surface protection component is engaged on the surface of the concrete staircase body, a back protection component is engaged on the back of the concrete staircase body, and connecting mechanisms are installed on both sides of the concrete staircase body, with limiting mechanisms fixedly connected to both ends of the connecting mechanisms.

[0007] Preferably, the surface protection component includes a first locking plate, and the surface of the concrete staircase body is fitted with multiple sets of first locking plates, and a first connecting rod is fixedly connected between the multiple sets of first locking plates.

[0008] Preferably, the rear protection component includes a second locking plate, two second locking plates are locked on the back of the concrete staircase body, and two second connecting rods are fixedly connected between the two second locking plates, and a third locking plate is fixedly connected between the two second connecting rods.

[0009] Preferably, the cross-sections of the first locking plate, the second locking plate, and the third locking plate are all L-shaped.

[0010] Preferably, the connecting mechanism includes connecting side plates, with the connecting side plates abutting on both sides of the concrete staircase body, and fixing plates fixedly connected to both ends of the connecting side plates.

[0011] Preferably, the limiting mechanism includes a fixed frame, the fixed frame is fixedly connected to the surface of the fixed plate, and a push stud is threaded into the outer end of the fixed frame. The end of the push stud abuts against one side of the driving plate, and a plug-in post is fixedly connected to the other side of the driving plate.

[0012] Preferably, the cross-section of the driving plate is rectangular, and the inner wall of the fixing frame is adapted to the surface dimensions of the driving plate.

[0013] Preferably, a return spring is welded between the inner wall of the fixed frame and the driving plate, and two return springs are symmetrically arranged.

[0014] Preferably, two plug-in posts are symmetrically fixed on the surface of the drive plate, and both plug-in posts are cylindrical. The fixing plate has a circular hole that matches the two plug-in posts, and the first locking plate and the second locking plate have grooves that match the plug-in posts.

[0015] Preferably, a buffer pad is glued to the outer side of the connecting side plate, and the surface of the buffer pad is provided with anti-slip texture.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. This device effectively shields and protects protruding parts of the concrete staircase body by engaging multiple first and second locking plates and a second connecting rod on the surface of the concrete staircase body, reducing collisions during transportation and preventing damage during transport of the formed concrete staircase body. At the same time, the first connecting rod and the third locking plate facilitate the connection of multiple sets of first locking plates and second connecting rods.

[0018] 2. This device uses the connecting side plates to engage with the first and second engaging plates on both sides, and the rotating push studs can push the plates, making it easy for the plug-in pins to pass through the fixing plate and insert into the first and second engaging plates, thus facilitating the limiting function of the first and second engaging plates. At the same time, the buffer pad glued to the outside of the connecting side plates can provide a buffering and protective function. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of a lightweight concrete staircase proposed in this utility model.

[0020] Figure 2 for Figure 1 Exploded three-dimensional diagram of the structure of the first and second locking plates in the middle;

[0021] Figure 3 for Figure 1 Exploded three-dimensional diagram of the structure of the first and second locking plates in the middle;

[0022] Figure 4 for Figure 1 A three-dimensional schematic diagram of the connecting side plate and fixing plate structure in the middle;

[0023] Figure 5 for Figure 1 An exploded 3D diagram of the fixed frame and reset spring structure.

[0024] In the picture: 1. The main body of the concrete staircase;

[0025] 2. Surface protection assembly; 21. First locking plate; 22. First connecting rod;

[0026] 3. Rear protection assembly; 31. Second locking plate; 32. Second connecting rod; 33. Third locking plate;

[0027] 4. Connecting mechanism; 41. Connecting side plate; 42. Fixing plate;

[0028] 5. Limiting mechanism; 51. Fixed frame; 52. Push stud; 53. Driving plate; 54. Insertion pin; 55. Return spring;

[0029] 6. Cushioning pad. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0031] Reference Figure 1-5 A lightweight concrete staircase includes a concrete staircase body 1, a surface protection component 2 is engaged on the surface of the concrete staircase body 1, and a back protection component 3 is engaged on the back of the concrete staircase body 1. The surface protection component 2 and the back protection component 3 can conveniently shield and protect the surface of the concrete staircase body 1. Connecting mechanisms 4 are installed on both sides of the concrete staircase body 1, and both ends of the connecting mechanisms 4 are fixedly connected to limiting mechanisms 5.

[0032] Further, refer to the figures and Figure 2 It can be seen that the surface protection component 2 includes a first locking plate 21. Multiple sets of first locking plates 21 are locked onto the surface of the concrete stair body 1, and a first connecting rod 22 is fixedly connected between the multiple sets of first locking plates 21. The first connecting rod 22 can conveniently connect and fix the multiple sets of first locking plates 21, and the multiple sets of first locking plates 21 can shield and protect the surface edges of the concrete stair body 1.

[0033] Furthermore, refer to Figure 2 and Figure 3It can be seen that the back protection component 3 includes a second locking plate 31. The back of the concrete stair body 1 is locked with two second locking plates 31, and two second connecting rods 32 are fixedly connected between the two second locking plates 31. A third locking plate 33 is fixedly connected between the two second connecting rods 32. The second connecting rods 32 can facilitate the connection of the two second locking plates 31, and the third locking plate 33 can increase the strength between the two sets of second connecting rods 32. The two and the third locking plates 33 can shield and protect the edges and corners of the back of the concrete stair body 1.

[0034] Furthermore, refer to Figure 3 and Figure 4 It can be seen that the cross-sections of the first locking plate 21, the second locking plate 31, and the third locking plate 33 are all set to L-shape. By setting the first locking plate 21, the second locking plate 31, and the third locking plate 33 to L-shape, the first locking plate 21, the second locking plate 31, and the third locking plate 33 can be locked at the edges of the concrete staircase body 1.

[0035] Furthermore, refer to Figure 3 and Figure 4 It can be seen that the connecting mechanism 4 includes a connecting side plate 41. The two sides of the concrete stair body 1 abut against the connecting side plate 41, and both ends of the connecting side plate 41 are fixedly connected with a fixing plate 42. Through the fixing plate 42 fixed at both ends of the connecting side plate 41, the overall function of the surface protection component 2 and the back protection component 3 can be conveniently limited.

[0036] Furthermore, refer to Figure 4 and Figure 5 It can be seen that the limiting mechanism 5 includes a fixed frame 51, the fixed plate 42 is fixedly connected to the fixed frame 51, and the outer end of the fixed frame 51 is threaded with a push stud 52. The end of the push stud 52 abuts against one side of the driving plate 53, and the other side of the driving plate 53 is fixedly connected to a plug-in post 54. By rotating the push stud 52, the driving plate 53 can be easily pushed, so that the driving plate 53 can drive the plug-in post 54 through the fixed plate 42 and insert it into the first locking plate 21 and the second locking plate 31, which facilitates the limiting installation of the first locking plate 21 and the second locking plate 31.

[0037] Furthermore, refer to Figure 4 and Figure 5 It can be seen that the cross-section of the driving plate 53 is set to a rectangle, and the inner wall of the fixing frame 51 is adapted to the surface size of the driving plate 53. By setting the cross-section of the driving plate 53 to a rectangle, it can play the role of limiting and guiding the plug-in post 54.

[0038] Furthermore, refer to Figure 3 and Figure 4It can be seen that a return spring 55 is welded between the inner wall of the fixed frame 51 and the driving plate 53, and two return springs 55 are symmetrically arranged. Through the elastic force of the return spring 55 itself, the driving plate 53 can be easily pulled to return to its original position. The symmetrical arrangement of two return springs 55 increases stability.

[0039] Furthermore, refer to Figure 3 and Figure 4 It can be seen that there are two symmetrically fixed plugs 54 on the surface of the driving plate 53, and both plugs 54 are cylindrical. The fixing plate 42 has a round hole that matches the two plugs 54. The first locking plate 21 and the second locking plate 31 have grooves that match the plugs 54. By setting the two plugs 54 to be cylindrical, the wear of the plugs can be reduced. The plugs 54 pass through the fixing plate 42 and are inserted into the first locking plate 21 and the second locking plate 31, which serves to limit the installation of the first locking plate 21 and the second locking plate 31.

[0040] Furthermore, refer to Figure 2 and Figure 3 It can be seen that a buffer pad 6 is glued to the outside of the connecting side plate 41, and the surface of the buffer pad 6 is provided with anti-slip texture. The buffer pad 6 glued to the outside of the connecting side plate 41 can play a role in preventing collision.

[0041] Working principle: When this utility model is in use, the concrete staircase body 1, according to the attached... Figure 1 Appendix Figure 2 Appendix Figure 3 Appendix Figure 4 and attached Figure 5 By placing the first locking plate 21 and the first connecting rod 22 on the surface of the concrete stair body 1, and locking the second locking plate 31, the second connecting rod 32, and the third locking plate 33 on the back of the concrete stair body 1, the two sets of connecting side plates 41 are locked on both sides of the concrete stair body 1. By rotating the push stud 52, the push stud 52 can push the drive plate 53 and the plug-in post 54 to move along the fixed frame 51. When the plug-in post 54 passes through the fixed plate 42 and inserts into the first locking plate 21 and the second locking plate 31, the two connecting side plates 41 and the multiple sets of first locking plates 21 and second locking plates 31 can be limited and installed on the surface of the concrete stair body 1, thereby providing shielding and protection for the surface of the concrete stair body 1.

[0042] The above is the complete working principle of this utility model.

[0043] In this utility model, the installation, connection or setting methods of all the components mentioned above are common mechanical methods, and the specific structure, model and coefficient index of all the components are their own technologies. As long as they can achieve their beneficial effects, they can be implemented, so they will not be described in detail.

[0044] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.

[0045] In this utility model, unless otherwise stated, directional terms such as "up, down, left, right, front, back, inside, outside, and vertical and horizontal" in the terminology only represent the orientation of the term in its conventional use or are common names understood by those skilled in the art, and should not be regarded as limitations on the term. At the same time, numerals such as "first," "second," and "third" do not represent specific quantities or orders, but are only used to distinguish names. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a series of elements includes not only those elements, but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

Claims

1. A lightweight concrete staircase, comprising a concrete staircase body (1), characterized in that, The surface of the concrete staircase body (1) is fitted with a surface protection component (2), the back of the concrete staircase body (1) is fitted with a back protection component (3), and the two sides of the concrete staircase body (1) are fitted with connecting mechanisms (4), and both ends of the connecting mechanisms (4) are fixedly connected with limit mechanisms (5).

2. A lightweight concrete staircase according to claim 1, characterized in that, The surface protection component (2) includes a first locking plate (21), and the surface of the concrete stair body (1) is fitted with multiple sets of first locking plates (21), and a first connecting rod (22) is fixedly connected between the multiple sets of first locking plates (21).

3. A lightweight concrete staircase according to claim 2, characterized in that, The back protection component (3) includes a second locking plate (31), and the back of the concrete stair body (1) is locked with two second locking plates (31), and two second connecting rods (32) are fixedly connected between the two second locking plates (31), and a third locking plate (33) is fixedly connected between the two second connecting rods (32).

4. A lightweight concrete staircase according to claim 3, characterized in that, The cross-sections of the first locking plate (21), the second locking plate (31), and the third locking plate (33) are all L-shaped.

5. A lightweight concrete staircase according to claim 4, characterized in that, The connecting mechanism (4) includes a connecting side plate (41), the two sides of the concrete staircase body (1) abut against the connecting side plate (41), and both ends of the connecting side plate (41) are fixedly connected to a fixing plate (42).

6. A lightweight concrete staircase according to claim 5, characterized in that, The limiting mechanism (5) includes a fixed frame (51), the fixed frame (51) is fixedly connected to the surface of the fixed plate (42), and a push stud (52) is threaded into the outer end of the fixed frame (51). The end of the push stud (52) abuts against one side of the driving plate (53), and a plug-in post (54) is fixedly connected to the other side of the driving plate (53).

7. A lightweight concrete staircase according to claim 6, characterized in that, The cross-section of the drive plate (53) is rectangular, and the inner wall of the fixing frame (51) is adapted to the surface size of the drive plate (53).

8. A lightweight concrete staircase according to claim 6, characterized in that, A reset spring (55) is welded between the inner wall of the fixed frame (51) and the driving plate (53), and two reset springs (55) are symmetrically arranged.

9. A lightweight concrete staircase according to claim 6, characterized in that, Two plug-in pins (54) are symmetrically fixed on the surface of the drive plate (53), and both plug-in pins (54) are cylindrical. The fixed plate (42) has a round hole that matches the two plug-in pins (54), and the first locking plate (21) and the second locking plate (31) have grooves that match the plug-in pins (54).

10. A lightweight concrete staircase according to claim 5, characterized in that, The outer side of the connecting side plate (41) is glued with a buffer pad (6), and the surface of the buffer pad (6) is provided with anti-slip texture.